-253

Appears in sequences

• Coefficients of Jacobi cusp form of index 1 and weight 10.at n=19A003784
• Unique attractor for (RIGHT then MOBIUS) transform.at n=54A007554
• Expansion of e.g.f. cos(sinh(tan(x))), even terms only.at n=3A009055
• Expansion of e.g.f. cos(tan(sinh(x))), even terms only.at n=3A009067
• Expansion of tan(x)*cos(sinh(x)).at n=3A009728
• Expansion of tan(x)/cosh(tan(x)).at n=3A009762
• sech(tan(tan(x))) = 1-1/2!*x^2-11/4!*x^4-253/6!*x^6-9015/8!*x^8 ... .at n=3A012154
• Matrix 8th power of inverse partition triangle A038498.at n=46A050311
• McKay-Thompson series of class 9B for the Monster group.at n=11A058091
• a(n) = -a(n-1) - a(n-2) + a(n-3), a(0)=3, a(1)=-1, a(2)=-1.at n=16A073145
• Expansion of (3 + 2*x + 3*x^2)/(1 + x + 3*x^2 - x^3).at n=8A073496
• Expansion of 1/(1+x+x^2+2*x^3).at n=21A077976
• Expansion of (1-x)/(1+x-x^2-2*x^3).at n=20A078041
• Expansion of (1-x)/(1+x+2*x^2+x^3).at n=19A078051
• Expansion of chi(x) / phi(x^2) in powers of x where phi(), chi() are Ramanujan theta functions.at n=23A085261
• G.f. A(x) satisfies: A(x) = 1/G000041(x/A(x)) where G000041(x) is the g.f. of the partition numbers A000041.at n=6A109084
• Expansion of Product_{k>=1} (1 + x^k)^lambda(k) where lambda(k) is the Liouville function, A008836.at n=63A118207
• a(n) = A122192(n)/6.at n=2A123013
• a(n) = (-1)^n * Sum_{i=1..floor(n/2)} i * floor(n/(n-i)).at n=45A131119
• Expansion of (eta(q) / eta(q^9))^3 in powers of q.at n=33A131986